Question

In: Mechanical Engineering

Pressurized water (pin= 10 bar, Tin= 110°C) enters the bottom of an L= 10-m-long vertical tube...

Pressurized water (pin= 10 bar, Tin= 110°C) enters the bottom of an L= 10-m-long vertical tube of diameter D= 88 mm at a mass flow rate of m˙⁢= 1 kg/s. The tube is located inside a combustion chamber, resulting in heat transfer to the tube. Superheated steam exits the top of the tube at Pout= 7 bar, Tout= 600°C. Determine the change in the rate at which the following quantities enter and exit the tube: (1) the combined thermal and flow work, (2) the mechanical energy, and (3) the total energy of the water. Also, (4) determine the heat transfer rate, q.
Hint: Relevant properties may be obtained from a thermodynamics text.

ANSWERE ALL BELOW Qs PLEASE!!

a) What is the outlet specific volume, in m3/kg?

b) What is the outlet velocity, in m/s?

c) What is the change in specific enthalpy from inlet to outlet, in kJ/kg?

d) Solve for the rate of change in the combined thermal and flow work energy from inlet to outlet, in MW.

e) Solve for the rate of change in mechanical energy from inlet to outlet, in MW.

f) What is the total heat transfer rate from the pipe, in MW?

Solutions

Expert Solution

samet mamat answered 2 years ago
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